Ionos.de has a €1 a month VPS

I think 1 core, 1gb ram, and 10gb.

Use either caddy or Nginx proxy manager. Both are easy to setup. Also both are dockerized.

I use Tailscale as my tunnel.

Total latency is about 70-90ms for me.

My friend has 1G/1G Internet. I have a rsync cron job backing up there 2 times a week.

It has a 8TB NVMe drive that I use bulk data backup and a 2TB os drive for VM stuff.